Stripper for rolling-mills



P-C. HALDEMANL STRIPPER FOR ROLLING MIL LS. APPLICATION HLED SEPT. 4,1919.

Patented Dec. 27,1921.

P.C.HALDEMAN.

- SIRIPPER FORBOLLING MILLS. ,YAPPLICAIION men sum-4, 1919.

1,401,773, I Patnted De0.27,192 1.

2 SHEETS-SHE! 2- PAUL c. HALDEMAN, or ooa'rEsvrLLE, PENNSYLVANIA,ASSIGNOR T0 LUKENS STEEL COMPANY, or coArEsvrLLn, PnN sYLvaNIA, aooaroaarro 0F PENNSYL VANIA.

I aromas.

STRIPPER FOB ROLLING-MILLS.

Specification-of Letters Patent. Patented Dec; 27,1921

Application filed September a, 1919. Serial No. 321,514.

To all whom it may concern: I

Be it known that I,"PAUL C. I-IALDEMAN, a citizen of the United States,residing in Coatesville, Chester county, Pennsylvan a, have inventedcertain Improvements in Strippers for Rolling-l lills, of which thefollowing is a specification. 1

My invention relates to rolling mills, and it consists of certainimprovementsin the means employed therewith for guidin the front ends ofplates emerging from between the rolls. One ofthe principal objects ofmy invention is to provide a simple and efiicient stripper'thatwillinsure the guidance of the rolled plates onto the roller table, and willact to clean the lower roll of any scale, cinder or the like which maybe dropped by the plates. Additionally my improved stripper is sodesigned as to readily d scharge therefrom any such foreign mater al soreceived. v

My invention includes a rest bar extending across the mill at a point inadvance of the lower roll and at a suitable distance there from, with aremovable stripper adapted to be carried by said rest bar; the latterhaving seats specially arranged to receive the stripper and beingfurther equlpped with suitable securing means therefor. Preferably Iemploy a plurality of removable stripper sections, as clearly shown inthe drawings and referred to in the specification.

These and other features of my invention are more fully describedhereinafter, reference being had to the accompanying drawings, in which:

Figure l, is a plan view of a rest bar and stripper carried thereby,withln the; scope of my invention.

Fig. 2, is a front elevation of the same.

Fig. 3, is a sectional view on the line III-III, Fig. 2,,illustratingthe rest bar and a stripper carried thereby.

Fig. 4, 1s a view similar to Fig. 3, illustrating a modification withinthe scope of my invention, and

Figs. 5 and 6, are views illustratlng other modified arrangements of thestripper within the scope of my invention.

In its broadest aspect, my invention cornprises a structure of the typeshown in Fig. 5, in which I have shown a stripper 1, clesigned to extendacross the mill in advance of the lower roll (shown by dotted lines atprovided between 2) and having a stripping edge 1 lying in engagementwith the lower roll;

I have illustrated in Fig. 6, a similar structure, having in addition aplate 3 resting against the roll 2 beyond the. stripping edge 1, for thepurpose oficleaning cinder, scale, and any other'foreign matter from thesame. This plate may be carried by a bolt orbolts) 4L, pivoted to thestripper atlp, so as to gravitate into contact with the re The upperportion of the stripper shown in Figs. 5 and 6, is notched, as indicatedat 6, throughout its length to provide re-. cesses into which, scale,cinder-and other fore gn matter carried, by the plate or produced underthe rolling operation may fall and be carried away by gravity so as toavoid being rolled into the plate. Projectionsor lugs 7, preferablynarrow, are said recesses 6, over which the platesmay pass to the rollertable.

The preferred form of my improved construction is illustrated in Figs.1, 2, 3 and 4. In Figs. 1 and 2, a rest bar is shown at 10, and while itis shown in these fviewsas partly broken away, it will 'be understoodthat it extends across thev full width of the mill, and isprovided withends 11 for support,,in suitable stirrups or other means at the sidehousings of the mill. This rest bar has a beveled upper edge 12, and-isprovided at intervals with stepped projecting portions or ribs 13,rising fromsaid beveled edge, and notched at 14: lengthwiseof the bar.Adapted to be supported by the rest bar is a stripper 1 consisting of aplurality of elements 15, having relatively thin edges 1* adapted toengage the surface 'of the roll,

(indicated by dotted lines at 2 thereb serving to guide the plate awayfrom the same and onto the roller table, and extending rearwardly fromthis thin edge of the rest bar are a series of ribs 7* shaped on theirunder side to engage the stepped and notched portion of the rest bar.

is beveled at 6 so that cinder, scale and the like, dropping from theplate, will be freely discharged therefrom and pass onto and over thebeveled surface 12 of the rest bar.

The stripper sections may be prevented from rising from the rest bars bymeans of e *e-bolts 20, pivotally connected at 21, to

Addition ally, the rear surface of the thin edge 1*" lugs 22, carried bysaid stripper sections and adapted to pass through apertures 23, inshoulders 24, carried by the rest bar; the latter being recessed at 25to accommodate the eye-bolts and keep them clear of the roll. Preferablya cotter pin 26 will be provided to retain the eye-bolt in place.

The construction shown in Fig. 4, is sub stantially like that shown inFig. 3, excepting that a spring 27 may be carried by the eye-bolt tohold stripper sections against the rest bar; bearing plates .28 beingprovided for the ends of the spring, and a nut 29 being threaded ontothe end of the eye'- bolt.

I claim:

1. The combination, with a roll of a rolling mill, of a stripper havinga thin edge arranged to contact with the roll and having its uppersurface provided with ribs, with recesses between said ribs for thedischarge of cinder, scale and. the like.

2. T he combination, with a roll of a rollin mill, of a stripper havinga thin edge arranged to contact with the roll and having its uppersurface provided with ribs, with recesses between said ribs; saidrecessed portions having inclined surfaces for the discharge of cinder,scale and the like. 3. The combination, with a roll of a'rolling mill,of a rest bar, and a stripper mounted thereon and having a thin edgearranged to contact with the roll and having its upper surface'providedwith ribs, with recesses between said ribs for the discharge of cinder,scale and the like.

4:. The combination, with a roll of a rolling mill, of a rest bar, and astripper mounted thereon having a thin edge arranged to contact with theroll and having its upper surface provided with ribs, with recesses beween said ribs; said recessed portions having inclined surfaces for thedischarge of cinder, scale and the like.

5. The combination, with a roll of a rolling mill, of a rest bearmounted adjacent to the roll, a stripper mounted upon said rest bar andadapted to engage the roll; said stripper having its upper surfacerecessed, with ribs between the recesses for supporting engagement witha plate passing over the rol, and means for securing said stripper plateto'the rest bar.

6. The combination, with a roll of arolling mill, of arrest bar mountedadjacent to the roll, a stripper made of a plurality of sections andmounted upon said rest bar and adapted to engage the roll; said strippersections having their upper surface recessed, with ribs between therecesses for engagement with a plate passing over the rolls; saidrecessed portions having inclined surfaces, and means for holding saidstripper sections to the rest bar.

7. The combination, with a roll of a rolling mill, of a rest bar mountedadjacent the roll, and having a beveled upper surface with notchedprojections extending above the same, a stripper mounted upon said restbar and engaging said projections and having an edge adapted to engagethe roll; said stripper having its upper surface recessed, withribsbetween the recesses for engage ment with a plate passing over the roll,and means for holding said stripper plate to the rest bar with its thinedge in engagement with the roll.

8. The combination, with a roll of a rolling mill, of a rest bar mountedadjacent the roll, and having a beveled upper surface with notched.projections extending above the same, a stripper having a plurality ofsections mounted upon said rest bar and engaging said projections andhaving an edge adapted to engage the roll; said stripper sections havingtheir upper surfaces recessed, with ribs between the'recesses forengagement with the plate passing over the roll; said recessed portionshaving inclined surfaces, and means for holding said stripper plates tothe rest bar with their thin edges in engagement with the roll;

ram o. HALDEMAN.

